Stabilized terminal acetylenes 1 [e.g. R=CH2OTHP, Ph, CH(OEt)2] may be converted into lithioacetylides and readily alkylated with 1° alkyl halides in DMSO to afford functionalized disubstituted acetylenes.
稳定的末端
乙炔1 [例如R = CH 2 OTHP,Ph,CH(OEt)2 ]可以转化为
硫代
乙炔,并易于在
DMSO中用1°烷基卤化物进行烷基化,从而得到官能化的二取代
乙炔。